It is narrated on the authority of Auf Ibn Malik Ashja'i (RA) that the Prophet (ﷺ) used to say in ruku:
سُبْحَانَ ذِي الْجَبَرُوْتِ وَالْمَلَكُوْتِ وَالْكِبْرِيَاءِ وَالْعَظَمَةِ
Pronunciation
Subhaana dhil-jabarooti, wal-malakooti, wal-kibriyaa'i, wal-'adhamah
Meaning
Glory is to You, Master of power, of dominion, of majesty and greatness. Then he prostrated and paused as long as he stood and recited Surat Aal Imran and then recited other surahs one after another.
Source: Sahih (Albani). Abu Dawud: 873
Read the hadith
حَدَّثَنَا أَحْمَدُ بْنُ صَالِحٍ، حَدَّثَنَا ابْنُ وَهْبٍ، حَدَّثَنَا مُعَاوِيَةُ بْنُ صَالِحٍ، عَنْ عَمْرِو بْنِ قَيْسٍ، عَنْ عَاصِمِ بْنِ حُمَيْدٍ، عَنْ عَوْفِ بْنِ مَالِكٍ الأَشْجَعِيِّ، قَالَ قُمْتُ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم لَيْلَةً فَقَامَ فَقَرَأَ سُورَةَ الْبَقَرَةِ لاَ يَمُرُّ بِآيَةِ رَحْمَةٍ إِلاَّ وَقَفَ فَسَأَلَ وَلاَ يَمُرُّ بِآيَةِ عَذَابٍ إِلاَّ وَقَفَ فَتَعَوَّذَ - قَالَ - ثُمَّ رَكَعَ بِقَدْرِ قِيَامِهِ يَقُولُ فِي رُكُوعِهِ " سُبْحَانَ ذِي الْجَبَرُوتِ وَالْمَلَكُوتِ وَالْكِبْرِيَاءِ وَالْعَظَمَةِ " . ثُمَّ سَجَدَ بِقَدْرِ قِيَامِهِ ثُمَّ قَالَ فِي سُجُودِهِ مِثْلَ ذَلِكَ - ثُمَّ قَامَ فَقَرَأَ بِآلِ عِمْرَانَ ثُمَّ قَرَأَ سُورَةً سُورَةً .
Narrated Awf ibn Malik al-Ashja'i: I stood up to pray along with the Messenger of Allah (ﷺ); he got up and recited Surat al-Baqarah (Surah 2). When he came to a verse which spoke of mercy, he stopped and made supplication, and when he came to verse which spoke of punishment, he stopped and sought refuge in Allah, then he bowed and paused as long as he stood (reciting Surah al-Baqarah), and said while bowing, "Glory be to the Possessor of greatness, the Kingdom, grandeur and majesty." :Then he prostrated himself and paused as long as he stood up and recited Surat Aal Imran (Surah 3) and then recited many surahs one after another. [Sahih (Albani). Abu Dawud: 873]
Duas from IslamicAPI's Masnun Dua dataset (based on the Quran, hadith, Hisnul Muslim and Rahe Belayat). See the dataset